I know nothing about GPS units at all. I am planning a trip to southwest Colorado and would like to have a GPS to guide me on trails like Cinnamon, Bandora Mine, Clear lake, Engineer Pass, etc. I also want to be able to use it for street guidance in the area too. I'm having a debate with the wife if a car unit will work. Like I said, we know very little about GPS units. Can I get some info on what type is best and suggestions for specific units that would be good. Also, if anyone has a used unit they are looking to sell in the $150 to $200 price range, I might be interested. Is it easy to get maps for this area/type of riding, will I spend a lot for these, and where do I get them? I know some of these answers may be in other posts here, but to get an all inclusive opinion, I decided to just post a new thread. Thank you in advance for you help, and I hope you don't flame me for all the questions that may have answers elsewhere.